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ScriptOrFnNode.cs
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278 lines (239 loc) · 7.25 KB
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//------------------------------------------------------------------------------
// <license file="ScriptOrFnNode.cs">
//
// The use and distribution terms for this software are contained in the file
// named 'LICENSE', which can be found in the resources directory of this
// distribution.
//
// By using this software in any fashion, you are agreeing to be bound by the
// terms of this license.
//
// </license>
//------------------------------------------------------------------------------
using System;
using EcmaScript.NET.Collections;
namespace EcmaScript.NET
{
public class ScriptOrFnNode : Node
{
virtual public string SourceName
{
get
{
return sourceName;
}
set
{
this.sourceName = value;
}
}
virtual public int EncodedSourceStart
{
get
{
return encodedSourceStart;
}
}
virtual public int EncodedSourceEnd
{
get
{
return encodedSourceEnd;
}
}
virtual public int BaseLineno
{
get
{
return baseLineno;
}
set
{
// One time action
if (value < 0 || baseLineno >= 0)
Context.CodeBug ();
baseLineno = value;
}
}
virtual public int EndLineno
{
get
{
return baseLineno;
}
set
{
// One time action
if (value < 0 || endLineno >= 0)
Context.CodeBug ();
endLineno = value;
}
}
virtual public int FunctionCount
{
get
{
if (functions == null) {
return 0;
}
return functions.size ();
}
}
virtual public int RegexpCount
{
get
{
if (regexps == null) {
return 0;
}
return regexps.size () / 2;
}
}
virtual public int ParamCount
{
get
{
return varStart;
}
}
virtual public int ParamAndVarCount
{
get
{
return itsVariables.size ();
}
}
virtual public string [] ParamAndVarNames
{
get
{
int N = itsVariables.size ();
if (N == 0) {
return ScriptRuntime.EmptyStrings;
}
string [] array = new string [N];
itsVariables.ToArray (array);
return array;
}
}
virtual public object CompilerData
{
get
{
return compilerData;
}
set
{
if (value == null)
throw new ArgumentException ();
// Can only call once
if (compilerData != null)
throw new Exception ();
compilerData = value;
}
}
public ScriptOrFnNode (int nodeType)
: base (nodeType)
{
}
public void setEncodedSourceBounds (int start, int end)
{
this.encodedSourceStart = start;
this.encodedSourceEnd = end;
}
public FunctionNode getFunctionNode (int i)
{
return (FunctionNode)functions.Get (i);
}
public int addFunction (FunctionNode fnNode)
{
if (fnNode == null)
Context.CodeBug ();
if (functions == null) {
functions = new ObjArray ();
}
functions.add (fnNode);
return functions.size () - 1;
}
public string getRegexpString (int index)
{
return (string)regexps.Get (index * 2);
}
public string getRegexpFlags (int index)
{
return (string)regexps.Get (index * 2 + 1);
}
public int addRegexp (string str, string flags)
{
if (str == null)
Context.CodeBug ();
if (regexps == null) {
regexps = new ObjArray ();
}
regexps.add (str);
regexps.add (flags);
return regexps.size () / 2 - 1;
}
public bool hasParamOrVar (string name)
{
return itsVariableNames.has (name);
}
public int getParamOrVarIndex (string name)
{
return itsVariableNames.Get (name, -1);
}
public string getParamOrVarName (int index)
{
return (string)itsVariables.Get (index);
}
public void addParam (string name)
{
// Check addparam is not called after addLocal
if (varStart != itsVariables.size ())
Context.CodeBug ();
// Allow non-unique parameter names: use the last occurrence
int index = varStart++;
itsVariables.add (name);
itsVariableNames.put (name, index);
}
public void addVar (string name)
{
int vIndex = itsVariableNames.Get (name, -1);
if (vIndex != -1) {
// There's already a variable or parameter with this name.
return;
}
int index = itsVariables.size ();
itsVariables.add (name);
itsVariableNames.put (name, index);
}
public void removeParamOrVar (string name)
{
int i = itsVariableNames.Get (name, -1);
if (i != -1) {
itsVariables.remove (i);
itsVariableNames.remove (name);
ObjToIntMap.Iterator iter = itsVariableNames.newIterator ();
for (iter.start (); !iter.done (); iter.next ()) {
int v = iter.Value;
if (v > i) {
iter.Value = v - 1;
}
}
}
}
private int encodedSourceStart;
private int encodedSourceEnd;
private string sourceName;
private int baseLineno = -1;
private int endLineno = -1;
private ObjArray functions;
private ObjArray regexps;
// a list of the formal parameters and local variables
private ObjArray itsVariables = new ObjArray ();
// mapping from name to index in list
private ObjToIntMap itsVariableNames = new ObjToIntMap (11);
private int varStart; // index in list of first variable
private object compilerData;
}
}